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Sequoia 1455 McDowell Blvd North Ste D ' <br /> J Petaluma CA 94954 <br /> (707) 792-0365 <br /> Analytical <br /> FAX(707) 792-0342 <br /> Delta Environmental Consultants Project Exxon Sampled 8126199 to 8/27/99 <br /> 3164 Gold Camp Dr, Suite 200 Project Number 7-0137/D099-865 Received 8130/99 ' <br /> Rancho Cordova,CA 95670 Project Manager Jim Brownell Reported 9/15/99 <br /> Total Petroleum Hydrocarbons as Gasohne and BTEX by EPA 8015M18020M/Quality Control , <br /> Sequoia Analytical-Petaluma <br /> Date Spike Sample QC Reporting Linut Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % - Lmut % Notes* <br /> Batch 9090114 Date Prepared 914/99 Extraction Method EPA 5030 waters <br /> Blank 9090114-BLK1 ' <br /> Gasoline 9/4/99 ND ug/l 500 <br /> Benzene ND 0 500 <br /> Toluene ND 0 500 <br /> Ethylbenzene ND 0 500 ' <br /> Xylenes(total) ND 0 500 <br /> Surrogate a a a-Trifluorotoluene 300 334 650-135 111 <br /> Surrogate 4-Bromofluorobenzene 300 286 650-135 953 <br /> LCS 9090114-BSI , <br /> Gasoline 9/4199 1000 955 ug/l 650-135 955 <br /> Surrogate 4-Bromofluorobenzene " 300 304 650-135 101 ' <br /> Matrix Spike 9090114-MS1 P909044-01 <br /> Gasoline 9/4/99 1000 ND 919 ug/l 650-135 919 <br /> Surrogate 4-Bromofluorobenzene rF 300 290 650-135 967 <br /> Matnx Spike Dup 9090114-MSD1 P909044-01 <br /> Gasoline_ _ _ _ _ _ _9/4/99_ 1000 ND 942 ug/l _650-135 942 200 247 <br /> Surrogate 4-Bra mofluorobenzene300 289 650-135 96 3 <br /> Sequoia Analytical-Petaluma *Refer to end of report for text of notes and definitions <br /> Page 7 of 11 <br />